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Electrostatic generators have been conventionally used to harvest energy from ambient vibrations. The mechanical vibrations alter the gap between the electrodes or the overlapping area of a capacitor without a solid or liquid dielectric to change its capacitance. Despite their high power density, such generators have not been used — and are not intended — to harvest thermal energy. In this paper we...
We present a novel concept of electric power generation from a spatial temperature gradient, achieved by integrating pyroelectric generators (PEGs) into a self-oscillating micro heat engine. The micro heat engine moves the PEGs between a hot and cold reservoir, thus bringing them in an alternating contact with a higher and lower temperature. By their pyroelectric nature, the PEGs convert this periodic...
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